Siemens RVA63.242 User Manual page 38

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Siemens Building Technologies
Landis & Staefa Division
• Check wiring and fuse of the charging pump (input test)
• Check wiring of the d.h.w. temperature sensor (output test)
The room temperature does not agree with the required temperature level:
• Check the room temperature setpoints
• Is the required operating mode indicated?
• Is automatic operation overridden by the room unit?
• Are weekday, time of day and the displayed heating program correct?
• Has the heating curve slope been correctly set?
• Check wiring of outside sensor
Heating plant does not function properly
• Check all parameters based on the setting instructions "Heating engineer" and the
operating instructions "End-user"
• Carry out the input testCarry out the output testCheck the electromechanical control
thermostat (TR) and the manual reset safety limit thermostat (STB)
Frost protection for the plant does not function at all, or does not function
correctly
• Check correct functioning of the burner
• Check correct functioning of the pumps
• Frost protection for the plant in the case of pump heating circuits with active room
temperature limitation
Quick setback or boost heating does not function
• Check settings made on the heating engineer's level
• Check the sensor connected to A6 (input test)
Fault status signal; display shows "ER"
• For cause of error, refer to section "Parameter settings for end-user" on line 50
Basic Documentation RVA63.242, RVA53.242
Handling
CE1P2373E
26.03.2001